How do you solve #-5- 7x < - 61#?
1 Answer
Sep 1, 2017
Explanation:
#"isolate the term in x on the left side with numeric values"#
#"on the right side"#
#"add 5 to both sides"#
#cancel(-5)cancel(+5)-7x< -61+5#
#rArr-7x< -56#
#"now divide both sides by - 7"#
#color(blue)"Note"#
#"when multiplying/dividing an inequality by a negative"#
#"value we must "color(red)"reverse the sign"#
#rArr(cancel(-7) x)/cancel(-7)> (-56)/(-7)larrcolor(red)" reverse sign"#
#rArrx>8" is the solution"#